package com.rd.student.jike.class4.wanghaixin.test0727;

import java.io.*;
import java.util.ArrayList;
import java.util.Collections;

public class Test {
    public static void main(String[] args) throws Exception{
        int n = 4;
        File file = new File("zrrdClass");
        Reader reader = new FileReader(file);
        char[] arr = new char[(int) file.length()];
        reader.read(arr);
        System.out.println(new String(arr));
        reader.close();
        ArrayList<String> list = new ArrayList<>();
        String s = "";
        for (int i = 0; i < arr.length; i++) {
            if(arr[i]=='、'){
                list.add(s);
                s="";
            }else{
                s = s+arr[i];
            }
        }
//        Collections.shuffle(list);
        System.out.println(list);
        Collections.shuffle(list);
        s="";
        for (int i = 0; i < n; i++) {
            s=s+list.get(i)+",";
            System.out.println(list.get(i));
        }
        File file1 = new File("class2");
        Writer writer = new FileWriter(file1);
        writer.write(s);
        writer.close();
    }
}
